1.2 - OSI Model

Question 1

What is OSI layer 1?

Answer 1

the Physical layer

Question 2

What is the main purpose of OSI layer 1?

Answer 2

Physical structure

Question 3

Name some things associated with OSI layer 1

Answer 3

Coax, Fiber, Wireless, Hubs, Repeaters

Question 4

What is OSI layer 2?

Answer 4

Data link layer

Question 5

What is the main purpose of OSI layer 2?

Answer 5

Frames

Question 6

Name some things associated with OSI layer 2

Answer 6

Ethernet, PPP (Point-to-point protocol), switch, bridge

Question 7

What is OSI layer 3?

Answer 7

Network layer

Question 8

What is the main purpose of OSI layer 3?

Answer 8

Packets

Question 9

Name some things associated with OSI layer 3

Answer 9

IP, ICMP, IPsec, IGMP (Internet Group Management Protocol)

Question 10

What is OSI layer 4?

Answer 10

Transport layer

Question 11

What is the main purpose of OSI layer 4?

Answer 11

End-to-end connections

Question 12

Name some things associated with OSI layer 4

Answer 12

TCP, UDP

Question 13

What is OSI layer 5?

Answer 13

Session layer

Question 14

What is the main purpose of OSI layer 5?

Answer 14

Synch and send to port

Question 15

Name some things associated with OSI layer 5

Answer 15

API’s (Applications Programming Interfaces), Sockets, Winsock

Question 16

What is OSI layer 6?

Answer 16

Presentation layer

Question 17

What is the main purpose of OSI layer 6?

Answer 17

Syntax

Question 18

Name some things associated with OSI layer 6

Answer 18

SSL, SSH, IMAP, FTP, MPEG, JPEG

Question 19

What is OSI layer 7?

Answer 19

Application layer

Question 20

What is the main purpose of OSI layer 7?

Answer 20

End user

Question 21

Name some things associated with OSI layer 7

Answer 21

HTTP, FTP, IRC (Internet Relay Chat), SSH, DNS